build: remove goo.gl links (angular#29640)

Since goo.gl is being turned down, these links will start 404ing soon.

Author: crisbeto

src/material/core/style/_elevation.scss

@@ -110,7 +110,7 @@ $_ambient-map: (
 // <div id="external-card" class="mat-elevation-z2"><p>Some content</p></div>
 //
 // For an explanation of the design behind how elevation is implemented, see the design doc at
-// https://goo.gl/Kq0k9Z.
+// https://docs.google.com/document/d/1W3NGSLqDZzjbBBLW2C6y_6NUxtvdZAVaJvg58LY3Q0E/edit
 
 // The default duration value for elevation transitions.
 $transition-duration: 280ms !default;

src/material/table/table-data-source.ts

@@ -153,8 +153,8 @@ export class MatTableDataSource<T, P extends MatPaginator = MatPaginator> extend
     if (_isNumberValue(value)) {
       const numberValue = Number(value);
 
-      // Numbers beyond `MAX_SAFE_INTEGER` can't be compared reliably so we
-      // leave them as strings. For more info: https://goo.gl/y5vbSg
+      // Numbers beyond `MAX_SAFE_INTEGER` can't be compared reliably so we leave them as strings.
+      // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER
       return numberValue < MAX_SAFE_INTEGER ? numberValue : value;
     }